Fabric Development and Pore-Throat Reduction in a Mass-Transport Deposit in the Jubilee Gas Field, Eastern Gulf of Mexico: Consequences for the Sealing Capacity of MTDs

Cardona, Sebastian; Wood, Lesli J.; Day-Stirrat, Ruarri J.; Moscardelli, Lorena

doi:10.1007/978-3-319-20979-1_3

Cited by 47 publications

(27 citation statements)

References 69 publications

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“…The interplay of erosion and sedimentation by low-density hyperpycnal currents constantly reshapes underwater channel-levee complexes (Posamentier and Kolla, 2003;Puig et al, 2014). Mass-Transport Deposits (MTDs) are also conspicuous components in the stratigraphic record that deeply modify the shape of subaquatic channels and contribute to their sediment infill, while possibly even acting as stratigraphic seals for hydrocarbon reservoirs (Alves et al, 2014;Cardona et al, 2016;Moscardelli et al, 2006). MTDs are also linked to some of the most important near-seafloor geohazards such as submerged slope failures with large tsunamigenic potential (e.g.…”

Section: Introductionmentioning

confidence: 99%

The role of mass-transport deposits and turbidites in shaping modern lacustrine deepwater channels

Corella

Loizeau

Kremer

et al. 2016

Marine and Petroleum Geology

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a b s t r a c tSubaquatic canyons are an important pathway for sediment transport into oceanic and lacustrine basins. Understanding the mechanisms governing their geomorphological evolution is a key to predict the sediment distribution patterns through these sediment conduits as well as to implement geo-hazard assessments. Submerged channels developed in large lacustrine basins offer a small-scale natural laboratory to understand the sedimentological processes operating in submarine channels. For this reason, a multidisciplinary research initiative -including time-lapse, high-resolution bathymetric surveys, innovative coring using submersibles, in situ geotechnical tests, and geophysical and sedimentological analyses-was applied to unravel the factors controlling the geomorphological evolution of the Rhone delta channels in Lake Geneva during the last decades. The morphology of the lacustrine Rhone Delta consists of a freshwater delta system deeply incised by nine canyons (C1eC9). Geotechnical measurements in proximal areas and sediment cores retrieved in the distal fans at the end of each canyon revealed complex sediment dynamics. No turbidity current events have occurred in the easternmost canyons (C1eC4) during the last decades while the western canyons sediment record (C5eC9) indicated repeated flushing events during the 20 th century. The main "active" canyon C8 has been dominated by turbidite activity on the canyon floor with frequent overspill events along the levees. A large 6.2 Â 10 6 m 3 Mass-Transport Deposit (MTD) that resembles a debrite in its upper section was found in the distal area of the active channel. The MTD was dated at 1998e2000 CE and most likely originated from proximal delta areas affected by frequent slope failures of the steep channel walls. In situ geotechnical tests on the modern proximal channel floor showed an unconsolidated soft top-layer that might have served as a low-friction surface favouring the MTD long run-out distance to the distal part of the channel. The MTD has had a major effect morphological evolution of the distal channel by filling the existing conduit, indirectly promoting the formation of a new channel. The role of MTD emplacement in subaquatic channels has important implications for hydrocarbon exploration as they control channel avulsion processes and the location of sand-prone deposits. This study gives a detailed insight on poorly investigated short-term sedimentological dynamics that affect the long-term evolution of turbidite systems and channel migration processes. This detailed model of a river-dominated deep-lacustrine depositional system can be used as an analog for similar modern and ancient deep-water systems.

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Section: Introductionmentioning

confidence: 99%

The role of mass-transport deposits and turbidites in shaping modern lacustrine deepwater channels

Corella

Loizeau

Kremer

et al. 2016

Marine and Petroleum Geology

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“…Submarine landslides have proven to play a role defining hydrocarbon reservoir location and geometry, facies distributions, development of stratigraphic traps and integrity of seal intervals. In this volume, a specific case study in the Gulf of Mexico is analysed by studying fabric development and pore-throat reductions of a local MTD that is clearly linked to a reservoir interval (Cardona et al 2016). Such approaches, where seismic scale observations are combined with rock properties, provides a glimpse into the future study of MTD in the context of hydrocarbon systems.…”

Section: Part I: Submarine Mass Movement In Margin Construction and Ementioning

confidence: 99%

Submarine Mass Movements and Their Consequences: Progress and Challenges

Lamarche

Mountjoy

Bull

et al. 2016

Submarine Mass Movements and Their Consequences

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This sixth edition of the Submarine Mass Movements and Their Consequences volume, coincident with the seventh eponymous conference includes 61 papers that span a variety of topics and are organized into nine parts as follows:(1) Submarine mass movement in margin construction and economic significance; (2) Failure dynamics from landslide geomorphology; (3) Geotechnical aspects of mass movement; (4) Multidisciplinary case studies; (5) Tectonics and mass movement processes; (6) Fluid flow and gas hydrates, (7) Mass transport deposits in modern and outcrop sedimentology; (8) Numerical and statistical analysis; and, (9) Tsunami generation from slope failure. The breath and quality of this body of work underpins a positive outlook and our enthusiasm for the future direction of research in this area of science as it moves towards ever more detailed analysis and monitoring. We also emphasize in this volume the need to look at mountain-scale

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“…This direct economic risk to exploration and production platforms is most relevant to small events with short reoccurrence intervals, and warrants ongoing research investment to enhance our understanding of processes and risk prediction. In this volume, a specific case study in the Gulf of Mexico is analysed by studying fabric development and pore-throat reductions of a local MTD that is clearly linked to a reservoir interval (Cardona et al 2016). While it is generally accepted that submarine mass movements have a role in the development of petroleum systems (in particular in generating traps and seals), the understanding of the processes involved remains limited.…”

Section: Part I: Submarine Mass Movement In Margin Construction and Ementioning

confidence: 99%

Submarine Mass Movements and their Consequences

2016

Advances in Natural and Technological Hazards Research

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Fabric Development and Pore-Throat Reduction in a Mass-Transport Deposit in the Jubilee Gas Field, Eastern Gulf of Mexico: Consequences for the Sealing Capacity of MTDs

Abstract: DedicationDedicated to my parents; my father who taught me that creativity goes further than knowledge, and my mother who showed me the value of diligent hard work.v

Cited by 47 publications

References 69 publications

The role of mass-transport deposits and turbidites in shaping modern lacustrine deepwater channels

The role of mass-transport deposits and turbidites in shaping modern lacustrine deepwater channels

Submarine Mass Movements and Their Consequences: Progress and Challenges

Submarine Mass Movements and their Consequences

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